{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x63a73cc3ae1c0d405e4f7f2a044705f83e74b950e5c0ba3f97db018d05796425",
    "signature": "0x3381aab03966ee4cd06aed96b77adca02dc8c13cea2fea9b231acdce9fbe9f18193599f464ba1ac776a6f49eafb40ac9b59c63113b60b6c2b49231a8f6258e211b",
    "signer": "0xA3312C0b98998f02d722cB8f7A2C0c28C4370Ca5",
    "userId": "49582319"
  }
}